Arch type loose-leaf binder



l'muentor Gktomeg Czar/95 C Pea. Wit! c. c. REA

ARCH TYPE LOOSE-LEAF BINDER Flled July as, 1946 Jan. 17, 1950 Patented Jan. 17, 195i) omirgao sraras .EPATENT This invention relates to a loose leaf binder and more particularly to a form of loose leaf binder known commercially as an arch type.

The principal object o l? the invention is the. provision of an improved arch type loose leaf binder incorporating manually operable means for opening and ciosin'gthe said binder.

further "object of the invention is the pro- 2 Claims. (c1. its-11) vision of an arch type loose leaf binder in-c'o-r ment with fixed members so 'asto' open and close the arches thus formed.

A still further object of the invention is the provision of an arch type loose lea'f binder mechanism including a pivoted handle and roller member for imparting manual movement to a l movably positioned portion of the arch sections of the said binder.

The arch type loose leaf binder shown and described herein has been designed to form a simple and efhcient manually operable device for opening and closing the arch members of the loose leaf binder so as to facilitate the positioning thereon or removal therefrom of various punched paper forms.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawing, wherein- Figure l is a top plan view of the arch type loose leaf binder.

Figure 2 is a front elevation of the arch type loose leaf binder with parts in cross section.

Figure 3 is a side elevation of the arch type loose leaf binder.

By referring to the drawings and Figures 1, 2 and 3 in particular, it will be seen that the arch type loose leaf binder consists of a mounting plate it upon which a pair of vertically standing rods i l are positioned in spaced relationship and that the uppermost ends of these rods l l are rounded, as indicated in Figure 3 by the numeral l2.

It will also be seen that a pair of partially arch shaped members l3 are formed of a single length of wire-like material, each of the partially arch shaped members l3 standing vertically. Their outermost, dovmturncd ends are indicated by the number it in Figure 3 and are cupped toengage the rounded upper ends 1 2 of the pairof verticallystanding members 1 It will thus be seen thatt'he partially arch shaped members !3 and the upstanding members H, in closed position as illustrated in th'e drawings, form a pair of complete arches which are useful in holding punched paper forms in loose leaf relation;

In order that the punched .paper forms may be positioned on the pair of arches or removed therefrom, the single wire-like member from which the two partial arch shapes are formed is pivotally mounted {on the base ill by means of a pair of straps l5 which in turn are 'ri've'ted as by means of r'ivetslt to the mounting plate Ill. The wire shape from which the two partial arch "shapes l3 are {formed is shaped at a right angle to the normally 'v'erti'cal sections of the partial "arches l3 and passes beneath the straps f5 in axiaralignment, a'SbESt'ShOWhinFigl/ireS 1 a'nd"3 of the drawings, so that it"znay be turned while such axial alignment "with straps it and thereby cause the upper portions of the partial arch sections it to engageand "disengage the upper ends of the vertically standing members i l and cause the opening and closing of the arch binder.

In order that the opening and closing movement may be effectively imparted to the partial arch sections i3, a section of the wire shape from which they are formed and which section lies between the strap members 15, is shaped so as to lie inwardly and upwardly. This section is generally indicated in the drawings by the number ll. One portion of this inwardly and upwardly extending central section of the wire shape from which the partial arches l3 are formed, is formed in an arc l8, as viewed from the top as in Figure 1, and also in a semi-M shape, as viewed from the end and as shown in Figure 3, thus forming a pair of oppositely inclined sections i9 which are also formed in the arc, as indicated by the numeral is in the top plan view of Figure 1. These oppositely inclined sections l9 are spaced apart by a centrally located depressed area 20, when viewed in end elevation, as shown in Figure 3.

In order that this conformation of the wire shape may be employed for imparting movement to the partially arched sections l3, a manually operable lever 2! is pivoted on an elevated support 22 by means of a pivot 23 and has a handle portion 24 extending outwardly to one side of the mounting plate Ill. The innermost end of the lever 21 is provided with a wheel-like roller 25 which travels in an are based on the pivot 23 when the handle 24 is moved to move the lever 29. The are traveled by the wheel-like roller 25 conforms exactly with the arc N3 of the wire shape 5? and thereby causes the partial arch members 13 to move into engagement with the upstanding members ii when the wheel-like roller 25 rests in the depression 223 on the effective apex of the two inclines is formed in the wire shape H.

In order that the moving of the handle 24 forwardly or backwardly will cause the partial arch sections l3 to open with respect to the upper ends of the upstanding members i l, a leaf spring is positioned on the mounting plate It and normally urges the wire shape I! upwardly against the wheel-like roller 25 on the lever 2|. Thus, when the wheel-like roller 25 is moved by the lever 2|, along the are 18 and down either one of the inclines IQ of the wire shape, the

motion of the spring 26 moves the innermost end the wire shape i? upwardly and hence causes the partial arch sections l3 to open with respect to the upper ends E2 of the upstanding members Moving the handle 2:3 in a reverse motion will also cause the wheel-like roller 25 to roll up either one of the inclines l9 and seat it in the depression 2i] and thereby depress the wire shape El and thus cause the partial arch portions E3 to close against the upper ends i 2 of the upstanding members 5!. The arch type loose leaf binder is thereby simply and efficiently operated by one hand of the user, thereby enabling the other hand to be used in placing loose leaf papers in the arch hinder or remove them therefrom.

It will thus be seen that the device is simply and efliciently formed and that it will operate effectively with little wear or mechanical diffioulty, and that it may be relatively inexpensively formed and hence widely distributed. It will also be seen that the manual motion necessary is on a horizontal plane which readily enables the operator of the arch type loose leaf binder to effect the motion necessary without interference of the desk or table surface upon which the binder is positioned.

Having thus described my invention, what I claim is:

1. An arch type loose leaf binder including a base member, a pair of vertically standing members thereon and a member movably positioned thereon and forming two partial arch shaped members for engaging the said vertically standing members to complete two separate arches a portion of the said member forming the part al arches being shaped into oppositely inclined se tions spaced. by a slight depression at the apgx of the said inclines, a lever pivoted to the said base member, a roller carried on the said lever and engaging the said inclined sections and spring means normally urging the said inclined sections of the member forming the partial arches against the said roller.

2. An arch type loose leaf binder including a base member, a pair of vertically standing members thereon and a member movably positioned thereon and forming two partial arch shaped members for engaging the said vertically standing members to complete two separate arches, a portion of the said member forming the partial arches being shaped into oppositely inclined sections spaced by a slight depression at the apex of the said inclines, a lever pivoted to the said base member, a roller carried on the said lever and engaging the said inclined sections and spring means normally urging the said inclined sections of the member forming the partial arches against the said roller, the said inclined sections being formed in an arc to conform to the radius of the pivoted lever and roller.

CHARLES C. REA.

REFERENCES CITED The following references are of record in the o file of this patent:

FOREIGN PATENTS 

